Gas-burner.



7i amvamiow 6/0/"0 144% dim? 913$ PATENTED JAN. 30, 1906. W. 0. HUMAN 66 F; T. WILLIAMS. GAS BURNER Wal /[am fl /702ml 9L fihm 7%60 heir alt Coma III Illllllllllllllllll APPLICATION FILED JAN. 5, 1905 sTA rns PATENT orr.

WILLIAM C. HOMAN AND FRANK THEO. WILLIAMS, OF MERIDEN, CONNECTICUT, ASSIGNORS TO EDWARD MILLER & COMPANY, OF MERIDEN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

GAS-BURNER.

Specification of Letters Patent.

Patented Jan. 30, 1906.

Application filed January 5, 1906. Serial No. 289,695-

To all whom it may concern:

Be it known that we, WILLIAM C. HoMAN and FRANK THEODORE I/VILLIAMS, citizens of the United States, residing at Meriden, county of New Haven, State of Connecticut, have invented certain new and useful Improvements in Gas-Burners, of which the following is a full, clear, and exact description.

This invention relates to burners, and particularly to those of the Bunsen type,in which means is provided for regulating the gas-supply independently of the air-supply for the purpose of obtaining a mixture of the proper proportions.

Our improvement is particularly useful in connection with burners used for illuminating purposes in which a refractory mantle is heated to incandescence by a Bunsen flame. In burners of this character wherein gas-regulating devices are employed it has been found that the flame tends to fluctuate and that this fluctuation is caused by unsteadiness of the gas-regulating means. These regulators are usually adjustable by means of screw-threads, and any vibration of the regulator, however slight, is sure to produce a corresponding variation of the gas-supply and a resulting fluctuation in the flame.

Our object-is to overcome this objectionable feature.

In the accompanying drawings, Figure l is an elevation of a burner embodying our invention. Fig. 2 is mainly a sectional view of the same. Fig. 3 shows a detail construction of the same. Fig. 4 is a plan view of a detail of construction.

1 is a nipple of any desirable construction suitable for attachment to the ordinary gasfixture. 2 2 are gas-passages through this nipple, the number of which is immaterial.

3 is a needle-valve.

4 is a centrally-perforated regulating-cap mounted on ascrew-threaded shank 5 of the nipple 1. This regulating-cap 4 cooperates with the needle-valve 3 and determines the size of the gas-passage.

In order to permit the cap to be easily removed for the purpose of adjustment, the screw-threads are ordinarily reasonablyloose, in consequence of which and of the unsteadiness of the regulating-cap resulting therefrom the size of the gas-opening at the valve is subject to variation. To prevent this variation, we provide suitable means for holding these parts friction-tight, comprising a spiral spring 6, placed around the needlevalve and so arranged as to press againstthe regulating-cap 4, so as tohold said cap against vibration. (See Fig. 2.)

8 is a Bunsen tube provided with the usual air-openings and secured to the nipple 1 by the screw-threads 9. In the preferred form this tube surrounds the regulatingcap 4, and access to the latter for the purpose of adjustment may be had either through the air-in lets or through separate slots 10 10, arranged adjacent to the base of said cap 4, as shown in the drawings.

It should be understood that we have described our invention merely in its preferred form. We have shown it in connection. with a burner in which the movable element of the adjusting mechanism is the regulating-cap, which forms the valve-seat. In some instances this part is made stationary, while the valve is made movable, to which latter form it is obvious that our invention applies with equal force. Tothat end, therefore, it should be understood that this invention is not limited to the particular combination or means illustrated herein.

Having thus described our invention, we claim and desire to secure by United States Letters Patent- 1. An incandescent gas-burner comprising a base member 1, having an exteriorly-sorewthreaded portion 9, an exteriorly screwthreaded portion 5 of smaller diameter, and a needle-tip 3 with a gas-passage having an outlet adjacent to the base of the needle-tip, a spring surrounding the base of the needletip, and an interiorly-threaded adjusting member 4 having a valve-outlet adapted to coact with said needle-tip, said spring being inclosed by said member and an integral burner-tube having an interiorly-threaded portion seated on the screw-threaded portion. 9 of the base and an air-inlet adjacent to the gas-outlet and an opening adjacent said adjusting member, said movable adjusting member substantially filling the space in said tube above said opening.

2. In an incandescent gas-burner, the combination of a base member 1 having a screwthreaded portion 9 and a screw-threaded por tion 5 of smaller diameter, a movable regulater-cap 4 adjustable on the screw-threaded portion 5, a needle-valve coacting With an outlet in said cap, a spring for causing frictional engagement between said cap and its threaded seat, and an integral burner-tube, screw-threaded onto the seat 9, and having an opening 10 for access to the regulator-cap and air-openings above the same adjacent to the gasoutlet, said burner-tube inclosing said ca and spring, said movable cap substantia ly filling the interior diameter of the WILLIAM C. HOMAN. FRANK THEO. WILLIAMS.

Witnesses:

L. W. STADTMILLER, FRED E. FRosT. 

